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    <blockquote> <p>how to set Alignment for TableCell into prepareRenderer, </p> </blockquote> <p>This should NOT be done in the prepareRenderer code. This property should be set in the renderer for the class or for the column because it only applies to a specific class or renderer. Instead use:</p> <pre><code>table.setPreferredScrollableViewportSize(table.getPreferredSize()); DefaultTableCellRenderer stringRenderer = (DefaultTableCellRenderer)table.getDefaultRenderer(String.class); stringRenderer.setHorizontalAlignment( SwingConstants.CENTER ); </code></pre> <p>For the highlighting code I used code that assumes that the <code>dealld</code> value is unique for a given set of transactions:</p> <pre><code> private Map&lt;Object, Color&gt; rowColor = new HashMap&lt;Object, Color&gt;(); private Color nextColor = Color.ORANGE; @Override public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { Component c = super.prepareRenderer(renderer, row, column); JComponent jc = (JComponent) c; if (isRowSelected(row)) return c; Object value = table.getValueAt(row, 7); Color background = rowColor.get(value); if (background != null) { c.setBackground( background ); } else { rowColor.put(value, nextColor); c.setBackground( nextColor ); nextColor = (nextColor == Color.ORANGE) ? Color.YELLOW : Color.ORANGE; } return c; } </code></pre> <p>Note: It won't work if sorting is required.</p> <p>Here is another approach that should work even if sorting is required (but I didn't test it with sorting);</p> <pre><code> @Override public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { Component c = super.prepareRenderer(renderer, row, column); JComponent jc = (JComponent) c; if (!isRowSelected(row)) { c.setBackground(getRowBackground(row)); } return c; } private Color getRowBackground(int row) { boolean isDark = true; Object previous = getValueAt(0, 7); for (int i = 1; i &lt;= row; i++) { Object current = getValueAt(i, 7); if (! current.equals(previous)) { isDark = !isDark; previous = current; } } return isDark ? Color.ORANGE : Color.YELLOW; } </code></pre>
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    1. COthank you for that +1
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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